An LCD panel can use which two of the following backlight technologies?
a. TN
b. CCFL
c. IPS
d. LED
B D. CCFL is a fluorescent backlight used in older LCD backlights. LED is the backlight system used in recent laptops. TN and IPS refer to twisted nematic and in-plane switching, which are two different technologies used in LCD panels that affect viewing angles and display speed, not backlighting.
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